144 research outputs found
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RECENZJAK. Chawarska, A. Klin, F.R.Volkmar (red.) (2008), Autism in infants and toddlers. Diagnosis, assessment and treatment, New York: Guilford Pres
Cathedral Classics
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Survivorship, Complications, and Outcomes Following Distal Femoral Replacement Using Megaprosthesis
Introduction: Distal femoral bone loss is often managed with a combination of modular prostheses, structural and non-structural allografts, and metal augmentation. However, when bone loss of the distal femur is severe, the viability of these methods can be limited.In the setting of severe bone loss, endoprosthetic reconstruction (EPR) with a megaprosthesis has become increasingly popular for both malignant and non-neoplastic indications. The primary aim of this study was to determine the short-term prosthesis survivorship, as well as complications, for patients who presented with non-neoplastic disease indications for megaprosthesis distal femoral replacement (DFR) at a single institution. The secondary aim was to identify factors that influenced the outcome of DFR.
Methods: A retrospective review was performed to identify patients who underwent megaprosthetic DFR surgery for a non-neoplastic indication, including native and preiprosthetic fractures, septic and aseptic nonunion, periprosthetic joint infection (PJI), and aseptic loosening or mechanical failure of a previous prosthesis. Information regarding complications, reoperations, demographics and comorbidities were recorded, excluding patients with less than 24 months follow-up. Reoperation for implant failure was used as the final endpoint for survivorship.
Results: Seventy-five patients were identified. DFR survivorship was 86% at one year and 76% at five years. Patients who sustained a native fracture or had non-union demonstrated the highest survival rate at one and five years, (91%, 82% respectively) followed by patients with aseptic loosening or mechanical failure of previous implants, and then patients with PJI. A total of 36 (48 %) patients experienced at least one post-operative complication and 27 patients (36%) required at least one reoperation. Fracture, aseptic loosening, and PJI were complications more likely to require reoperation for prosthesis failure. Furthermore, patient demographics and comorbidities were not significant for predicting failure.
Discussion: DFR is a viable surgical option for significant distal femoral bone loss with good short-term survivorship. There is a high overall complication rate, however the complication profile, as well as survivorship may vary based on the initial indication for DFR
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Pseudogout Diagnosed By Point-of-care Ultrasound
A 71-year-old male presented to the emergency department (ED) for worsening right knee pain for the prior 3-4 weeks. Point-of-care ultrasound (POCUS) of the right knee showed a pseudo-double contour sign. Subsequent ultrasound-guided arthrocentesis of the knee joint was performed, and fluid studies showed the presence of calcium pyrophosphate crystals, which was consistent with pseudogout. Ultrasound for detection of calcium pyrophosphate crystals in pseudogout and chondrocalcinosis has sensitivity of 86.7% and specificity of 96.4% making POCUS a valuable tool for diagnosing crystalline-induced arthropathy in the ED
Regional variation in angioplasty practice in the United States: A report from the Hirulog angioplasty study
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Systemwide Clinical Ultrasound Program Development: An Expert Consensus Model.
Clinical ultrasound (CUS) is integral to the practice of an increasing number of medical specialties. Guidelines are needed to ensure effective CUS utilization across health systems. Such guidelines should address all aspects of CUS within a hospital or health system. These include leadership, training, competency, credentialing, quality assurance and improvement, documentation, archiving, workflow, equipment, and infrastructure issues relating to communication and information technology. To meet this need, a group of CUS subject matter experts, who have been involved in institution- and/or systemwide clinical ultrasound (SWCUS) program development convened. The purpose of this paper was to create a model for SWCUS development and implementation
Survivorship, complications, and outcomes following distal femoral arthroplasty for non-neoplastic indications.
AIMS: Endoprosthetic reconstruction with a distal femoral arthroplasty (DFA) can be used to treat distal femoral bone loss from oncological and non-oncological causes. This study reports the short-term implant survivorship, complications, and risk factors for patients who underwent DFA for non-neoplastic indications.
METHODS: We performed a retrospective review of 75 patients from a single institution who underwent DFA for non-neoplastic indications, including aseptic loosening or mechanical failure of a previous prosthesis (n = 25), periprosthetic joint infection (PJI) (n = 23), and native or periprosthetic distal femur fracture or nonunion (n = 27). Patients with less than 24 months\u27 follow-up were excluded. We collected patient demographic data, complications, and reoperations. Reoperation for implant failure was used to calculate implant survivorship.
RESULTS: Overall one- and five-year implant survivorship was 87% and 76%, respectively. By indication for DFA, mechanical failure had one- and five-year implant survivorship of 92% and 68%, PJI of 91% and 72%, and distal femur fracture/nonunion of 78% and 70% (p = 0.618). A total of 37 patients (49%) experienced complications and 27 patients (36%) required one or more reoperation. PJI (n = 16, 21%), aseptic loosening (n = 9, 12%), and wound complications (n = 8, 11%) were the most common complications. Component revision (n = 10, 13.3%) and single-stage exchange for PJI (n = 9, 12.0 %) were the most common reoperations. Only younger age was significantly associated with increased complications (mean 67 years (SD 9.1)) with complication vs 71 years (SD 9.9) without complication; p = 0.048).
CONCLUSION: DFA is a viable option for distal femoral bone loss from a range of non-oncological causes, demonstrating acceptable short-term survivorship but with high overall complication rates
Adverse events related to ultrasound-guided regional anesthesia performed by Emergency Physicians: Systematic review protocol
The use of ultrasound-guided regional anesthesia for pain management has become increasingly prevalent in Emergency Medicine, with studies noting excellent pain control while sparing opioid use. However, the use of ultrasound-guided regional anesthesia may be hampered by concern about risks for patient harm. This systematic review protocol describes our approach to evaluate the incidence of adverse events from the use of ultrasound-guided regional anesthesia by Emergency Physicians as described in the literature. This project will also seek to document the scope of ultrasound-guided regional anesthesia applications being performed in Emergency Medicine literature, and potentially serve as a framework for future systematic reviews evaluating adverse events in Emergency Medicine
The Fate of Periprosthetic Joint Infection Following Megaprosthesis Reconstruction
Background: A megaprosthesis may be used for reconstruction in patients with massive bone loss or a periprosthetic fracture. Periprosthetic joint infection (PJI) may occur after a megaprosthesis reconstruction and may pose a major challenge. The outcomes of managing PJI in patients with a megaprosthesis is relatively unclear. The aim of this study was to investigate the clinical course and outcomes of PJI in patients with a megaprosthesis in place.
Methods: From a total of 219 patients who underwent megaprosthesis replacement for non-oncologic conditions, 38 (17.4%) developed subsequent PJI. A retrospective review of the medical record was performed to ascertain the course of the PJI and treatment outcomes. Kaplan-Meier analysis was performed to evaluate the survival function, and the log-rank test was used to assess differences in outcome measures.
Results: The surgical management of 33 patients with PJI included debridement, antibiotics, and implant retention (DAIR) (82%), consisting of DAIR with modular component exchange (19 patients) and DAIR without component exchange (8 patients); 2-stage exchange arthroplasty (9%); resection arthroplasty (6%); and a single-stage revision arthroplasty (3%). The Kaplan-Meier survivorship analysis demonstrated that the overall survival rate was 65.1% at 2 years. The mortality rate was 15%, with many patients undergoing salvage procedures including amputation (18%), arthrodesis (6%), and resection arthroplasty (6%).
Conclusions: The rate of PJI after megaprosthesis reconstruction, 17% in this study, appears to be very high. The management of PJI in these patients is challenging, with 1 of 3 patients undergoing failed treatment. Despite the limited options available, DAIR seems to be an appropriate treatment strategy for some of these patients. Further data on a larger cohort are needed to assess the success of various surgical procedures and predictors of failure in this challenging patient population.
Level of evidence: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence
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